Google Sheets' sharing settings let you control exactly who can view, comment on, or edit a file, and Version History (File > Version history) lets you see or restore any previous version, which protects against accidental overwrites when multiple people edit the same file. Comments, not the same as cell text, let collaborators discuss a specific cell or range without changing the data itself, which is especially useful for remote or distributed teams reviewing a shared report. Google Forms can be linked directly to a Sheet so that every form submission -- a survey response, an event registration, an expense claim -- appears automatically as a new row, turning the spreadsheet into a simple, no-code data collection system without any manual copy-pasting.